Archive A Reconstructed © MegaSecurity Database

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Server
Dropped File:
c:\WINDOWS\system32\yupdater.exe
Size: 90,259 bytes 

Added to Registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run "Yahoo Auto Updater"
Data: C:\WINDOWS\system32\yupdater.exe  



Tested on Windows XP
November 21, 2008

Send Yahoo Passwords (8,9)
Send Dial-Up Passwords
Send IP
Send Computer Name
Send Win User Name
Send OS Name
Disable Y!Save Password
Disable Regedit
Disable Ms Config
Disable Task Manager
Hide Run
Auto Startup
Melt After install
Fake error Message
Choose Icon

This archive is an almost-complete reconstruction of the legendary Mega Security (also known as Kobayashi), a premier 90s-era "Trojan Database" where malware authors once showcased their work. After a decade offline, the site was brought back in August 2024 by its original creator, MasterRat, who authorized the Malware Gallery to host this modernized, searchable version of the collection. While the original site remains available for those seeking a nostalgic, old-school experience, we are proud to continue its legacy here. Full credit and thanks go to MasterRat and the retired Mega Security staff for their years of dedicated work in cataloging these historical samples.